Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

Tutors Answer Your Questions about Graphs (FREE)

Question 226049: Please help me find the center (h,k) and radius r for the circle x^2+y^2+12x+10y+57=0
Click here to see answer by LtAurora(115)

Question 226039: the line with equation y=x-1 passes through the point (m,15).what is the value of m
Click here to see answer by LtAurora(115)

Question 226043: a circle has diameter 16cm. estimate its circumfrence
Click here to see answer by Alan3354(69443)

Question 226244: Find the y- and x-intercepts for the equation.
4y = -28 + 7x
Any assistance is greatly appreciated.
Click here to see answer by jim_thompson5910(35256)

Question 226245: Find the y- and x-intercepts for the equation.
4) f(x) = - 3 - 7x

Click here to see answer by drj(1380)

Question 226328: trying to help my daughter graph y=-3x+1
Thanks
Click here to see answer by solver91311(24713)

Question 226400: give the equation of the line that passes thru (0.9,0.3) and parallel to 3x+2y=6, leave your answer in y=mx+b form
Click here to see answer by Theo(13342)

Question 226413: Find the slope and y-intercept of the line represented by each of the following equations.
y = 3x + 5
Can you show me step by step how you solve the question? Thank you
Click here to see answer by drj(1380)

Question 226534: Find the slope and the y-intercept f(x)=-2x-4
Click here to see answer by solver91311(24713)

Question 226536: Find the slope and the y-intercept of the line. Write the fractional answer in lowest terms. y=-1/4x-8/5 The slope is ?
Click here to see answer by solver91311(24713)

Question 226536: Find the slope and the y-intercept of the line. Write the fractional answer in lowest terms. y=-1/4x-8/5 The slope is ?
Click here to see answer by rfer(16322)

Question 226539: Find the slope and the y-intercept y=3.1x-6 The slope is ?
Click here to see answer by rfer(16322)

Question 226653: The exercise asks the following: Find the slope of each line. If the line has no slope, say so. . Thanking you in advance.
Click here to see answer by rfer(16322)

Question 226865: how to fined the slope of a equation
Click here to see answer by rfer(16322)

Question 226954: What is the graph of -2x+y=7.
Click here to see answer by drj(1380)

Question 227090: Slope -3 and passes through the origin

Click here to see answer by Alan3354(69443)

Question 227093: 3x+5y=11 in the form of y=mx+b
Click here to see answer by drj(1380)

Question 226901: 2x-5y=10 I have tried many times to graph this and I know my problem lies with a negative and/or positive solution-help??
Click here to see answer by ankor@dixie-net.com(22740)

Question 227192: i have some questions i am stuck on translating problems into equations . i need help with problem 4 which is ... the atomic weight of an element is the sum of the protons and neutrons in the element.the atomic number indicates the number of protons. how many neutrons are in an atom of iodine?
and it gives a chart that has Kr, NE , i , Os and Au.
thanks gabby cuthbert
Click here to see answer by solver91311(24713)

Question 227348: What is -2/3t = 16?
Click here to see answer by rapaljer(4671)

Question 227432: Brian O'Reilly earns twice as much each week as a tutor than he does pumping gas. His total weekly wages are $150 more than that of his younger sister. She earns one quarter as much as Brian does as a tutor. How much does Brian earn as a tutor?
Click here to see answer by josmiceli(19441)

Question 227440: (-2, 2) and (4, 5) write the equation of the line in slope intersept form
Click here to see answer by rfer(16322)

Question 227640: how do you solve this 6(3y-4)>12+6y

Click here to see answer by ilovemybabymaricela(1)

Question 227640: how do you solve this 6(3y-4)>12+6y

Click here to see answer by jim_thompson5910(35256)

Question 227597: Graph the linear equation:

-4x - 36y = -36

Click here to see answer by user_dude2008(1862)

Question 227596: Graph the linear equation :
y = -1/2x + 2
Click here to see answer by user_dude2008(1862)

Question 227619: what is the slope of (1.0,14400)(2.0,108000)
Click here to see answer by rfer(16322)

Question 227686: Minimize the expression Z= 2x +3y subject to the following constraints.
y <= 5, x <=6, x+y >= 2, x >= 0, y >=0
Click here to see answer by jsmallt9(3758)

Question 227862: to earn an A in a course, a student must get at least a 90 average on four tests and a final exam, with the final exam weighted twice that of any one test. If the four test scores are: 93, 69, 89, and 97, what is the lowest score the student can earn on the final exam and still get an A
Click here to see answer by rfer(16322)

Question 227974: How do I solve for y? y:3x-y+3=x-6y
Click here to see answer by JenniferTutors(83)

Question 228012: Please help me graph the solution set
7x+12>6x+1
Click here to see answer by rfer(16322)

Question 228052: graph y = 3x + 4
I am doing this on something called EZgraph but I don't understand how to put the numbers in, can you help me?
TIA

Click here to see answer by stanbon(75887)

Question 228164: HOW CAN I GRAPH 7X-3Y=-21 I GOT Y=7/3X+7 BUT THE GRAPHS ON MY PAPER DONT MATCH
Click here to see answer by Earlsdon(6294)

Question 228283: Use substitution with the two equations and determine the points of intersection. Show all work.
y=x^2-1
y=x
Click here to see answer by drj(1380)

Question 228281: Use substitution with the two equations and determine the points of intersection.
y=x^2-1
y=x
Click here to see answer by checkley77(12844)

Question 228304: i have a set of problems and i'm stuck on this one
-Write the equation in slope -intercept form of the line that passes through point (4,2) and is perpendicular to the line y=3-2x
im not quite sure how to do it, can you give me an example of how you would solve a problem this or the formula to solve it please
Click here to see answer by checkley77(12844)

Question 228300: 4x + y=1
Click here to see answer by checkley77(12844)

Question 228345: Find the equation of each line in y=mx+b form.
(3,2) undefined slope how do i do this?

Click here to see answer by checkley77(12844)

Question 228447: slope 2 and y intercept (0,7).
The slope equation is y= ?
Click here to see answer by rapaljer(4671)

Question 228442: Suppose the line L has a slope of (-3/5) and passes through the points (11, t) and (2t, -8 ). Find the equation of L and its x and y intercepts.
Click here to see answer by drj(1380)

Question 228460: melissaa brother is six years less than twice her age. the sum of her age and her brother's age is twenty seven. what should the equation be?
Click here to see answer by sunbern(1)

Question 228445: Write the equation in standard form with integer coefficients:

x-y-9=0

Click here to see answer by drj(1380)

Question 228561: If C=25+10*x and C=0+15*x how can i set up an inequality and work it out in algebraically? Thanks!!
Click here to see answer by mangeshpjoshi(15)

Question 228672: graph x+2y=8
Click here to see answer by jim_thompson5910(35256)

Question 228722: graph the system of inequalities:
(x-3)^2/9 + (y+2)^2/4 <= 1
(x-3)^2 + (y=2)^2 >= 4
Click here to see answer by jim_thompson5910(35256)

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